Define a period

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How many working days in year 1956?

Here is the detail of the calculation:

Because 1956 is a leap year, it has 366 days.

Let's remove 52 saturdays and 53 sundays. It remains 261 days.

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1956.

Here is the list of these 11 public holidays:

1. A doua zi după Anul Nou : Monday, 2 January, 1956
2. Ziua Unirii Principatelor Române : Tuesday, 24 January, 1956
3. Ziua Muncii : Tuesday, 1 May, 1956
4. Vinerea Mare : Friday, 4 May, 1956
5. A doua zi de Paște : Monday, 7 May, 1956
6. Ziua Copilului : Friday, 1 June, 1956
7. A doua zi de Rusalii : Monday, 25 June, 1956
8. Adormirea Maicii Domnului : Wednesday, 15 August, 1956
9. Sfântul Andrei : Friday, 30 November, 1956
10. Crăciunul : Tuesday, 25 December, 1956
11. A doua zi de Crăciun : Wednesday, 26 December, 1956

And here are the 4 public holidays falling on a weekend:

1. Anul Nou : Sunday, 1 January, 1956
2. Paște ortodox : Sunday, 6 May, 1956
3. Rusalii : Sunday, 24 June, 1956
4. Ziua Națională a României : Saturday, 1 December, 1956